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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Nexperia USA Inc. BUK9575-100A,127

Name: BUK9575-100A,127
Brand: Nexperia USA Inc.
SKU: BUK9575-100A,127
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK9575-100A,127

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: BUK9575-100A,127.pdf

Description:: MOSFET N-CH 100V 23A TO220AB

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Product details

Overview

BUK9575-100A,127 from NXP Semiconductors is a logic-level N-channel TrenchMOS FET in TO-220AB (SOT78A) package, designed for automotive-critical power switching. It delivers 100 V drain-source voltage rating, 23 A continuous drain current at T_mb = 25 °C, and 55 mΩ typical R_DS(on) at V_GS = 10 V and T_j = 25 °C, enabling efficient low-voltage gate drive in engine control units and body electronics.

For engineers reviewing the BUK9575-100A,127 datasheet, BUK9575-100A,127 pinout, BUK9575-100A,127 application, or BUK9575-100A,127 equivalent, key selection criteria include AEC-Q101 qualification, avalanche ruggedness (100 mJ), thermal resistance (1.5 K/W junction-to-mounting base), and gate threshold stability across -55 to 175 °C junction temperature range.

Technical Context

This device uses TrenchMOS technology to achieve low on-resistance with logic-level gate drive compatibility (V_GS(th) = 1–2 V at 25 °C). Its internal drain and source inductances (4.5 nH and 7.5 nH respectively) are optimized for fast switching in inductive load circuits such as solenoid drivers and motor phase control.

The integrated source-drain diode supports freewheeling in H-bridge configurations, with V_SD = 0.85–1.2 V at I_S = 10 A and reverse recovery time t_rr = 63 ns. Avalanche capability is specified under unclamped inductive switching conditions (I_D = 14.2 A, V_sup ≤ 25 V), confirming robustness in automotive transients.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V maximum - supports 42 V automotive systems and transient overvoltage tolerance up to ISO 7637-2 Pulse 5a.
I_D (continuous)	23 A at T_mb = 25 °C - enables high-current loads like radiator fans or headlight modules without external heatsink derating.
R_DS(on)	55 mΩ typ. @ V_GS = 10 V, T_j = 25 °C - reduces conduction loss to <0.03 W at 10 A, critical for thermal management in sealed ECUs.
E_AS	100 mJ non-repetitive avalanche energy - ensures single-event survivability during load dump or inductive kickback in starter relays.
R_th(j-mb)	1.5 K/W - allows direct mounting to chassis or heatsink, simplifying thermal design for space-constrained automotive modules.
V_GS(th)	1.0–2.0 V @ T_j = 25 °C - guarantees turn-on with standard 3.3 V or 5 V microcontroller GPIOs without level-shifting circuitry.
t_r/t_f	120/57 ns typical - supports PWM frequencies >20 kHz for noise-sensitive applications like HVAC blower control.

Pinout & Package

TO-220AB (SOT78A) plastic single-ended package with heatsink-mounted tab; 3-lead configuration; mounting base electrically connected to drain terminal.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Logic-level input controlling channel conduction; requires <100 nA leakage current handling at ±15 V max rating.
2 (D)	Drain	Main high-side power path; shares mounting base connection for low-inductance heat transfer and reduced EMI loop area.
3 (S)	Source	Power return node; referenced to ground in low-side switch topology; supports 23 A continuous current flow.
Mounting Base (mb)	Drain tie	Electrically tied to Pin 2 (Drain); provides mechanical attachment and primary thermal path to heatsink or chassis.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, humidity bias HAST, and mechanical shock per JESD22 standards.
Low R_DS(on) at 5 V drive	60–75 mΩ @ V_GS = 5 V, enabling direct MCU interface without gate driver ICs in cost-sensitive body control modules.
High avalanche ruggedness	100 mJ unclamped energy rating ensures survival during worst-case inductive switching events in fuel pump or ABS valve drivers.
Optimized dynamic parameters	C_iss = 1278–1704 pF and C_rss = 88–120 pF support stable gate drive with minimal Miller-induced oscillation in 12 V/24 V systems.
Wide operating temperature	Junction range of -55 to +175 °C supports under-hood placement in engine bay applications without derating.

Applications

Engine Control Unit (ECU) Fuel Injector Driver

Automotive Body Control Module (BCM)

Use Scenario: High-speed switching of 12 V fuel injectors with peak currents up to 18 A and inductive flyback suppression.

IC Role / Device Role / Timing Role: Low-side power switch with integrated freewheeling diode; handles 20 kHz PWM timing for precise fuel metering.

Use Value: 55 mΩ R_DS(on) minimizes power loss (<1.8 W at 6 A), reducing thermal stress in compact ECU enclosures.

Use Scenario: Power distribution to door lock actuators, window lift motors, and interior lighting loads.

IC Role / Device Role / Timing Role: Logic-level controlled load switch; activated by 3.3 V CAN/LIN microcontroller outputs.

Use Value: V_GS(th) ≤ 2 V ensures reliable turn-on with automotive MCUs, eliminating need for discrete level shifters.

Electric Power Steering (EPS) Motor Phase Switch

Start-Stop System Starter Relay Replacement

Use Scenario: Half-bridge leg in 42 V EPS motor control, managing bidirectional current up to 20 A.

IC Role / Device Role / Timing Role: High-side or low-side FET in three-phase inverter; withstands 100 V transients during battery regeneration.

Use Value: 100 mJ avalanche rating prevents failure during regenerative braking-induced voltage spikes.

Use Scenario: Solid-state replacement for electromechanical starter relays in 12 V start-stop systems.

IC Role / Device Role / Timing Role: Main battery isolation switch; rated for 91 A pulsed drain current during cranking.

Use Value: 1.5 K/W R_th(j-mb) enables direct chassis mounting, eliminating relay coil power consumption and contact wear.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel logic-level power switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP110N10F7	100 V, 110 A, R_DS(on) = 7.5 mΩ @ 10 V - lower on-resistance but TO-220FP package lacks mounting base; higher thermal resistance (2.5 K/W).	Requires external heatsink and gate driver due to higher gate charge (Q_G = 110 nC vs. 25 nC); unsuitable for space-constrained ECU designs.	Select only when ultra-low conduction loss justifies added thermal complexity and PCB area.
IRF540NPBF	100 V, 33 A, R_DS(on) = 44 mΩ @ 10 V - non-AEC-Q101; V_GS(th) = 2–4 V; no avalanche rating specified.	Lacks automotive qualification and defined avalanche performance; not approved for safety-critical functions like ABS or airbag deployment.	Acceptable only for non-safety automotive accessories (e.g., aftermarket lighting) where qualification is not mandated.

Compared with STP110N10F7 and IRF540NPBF, BUK9575-100A,127 uniquely combines AEC-Q101 compliance, 1.5 K/W thermal resistance, and 100 mJ avalanche rating in a TO-220AB package-making it the only drop-in solution for production-critical automotive power stages requiring zero derating at 125 °C ambient.

Availability

BUK9575-100A,127 is available at Aetrix Electronics and suitable for engine control units, body control modules, electric power steering systems, and start-stop system implementations requiring stable component supply across extended automotive lifecycles.

Supply support for BUK9575-100A,127 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

This device belongs to NXP's TrenchMOS automotive power portfolio, engineered specifically for AEC-Q101-compliant high-reliability switching in harsh under-hood environments with minimal external components.

FAQ

Is BUK9575-100A,127 qualified for automotive use?

Yes, BUK9575-100A,127 is fully AEC-Q101 qualified per the official NXP product data sheet Rev. 3 (26 April 2011). It has undergone temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing to meet automotive reliability requirements for critical power switching functions.

What is the maximum gate-source voltage rating?

The absolute maximum V_GS rating is ±15 V, as specified in Table 4 (Limiting Values) of the NXP datasheet. Exceeding this value risks permanent gate oxide damage. Recommended operating V_GS is 0 to 10 V for optimal R_DS(on) and lifetime reliability.

Can BUK9575-100A,127 be used in high-frequency PWM applications?

Yes, its 120 ns rise time and 57 ns fall time support PWM operation up to 100 kHz in properly designed gate-drive circuits. However, switching losses increase above 20 kHz due to C_iss = 1.28–1.70 nF; layout must minimize gate loop inductance to prevent ringing.

Does the mounting base require electrical isolation from the heatsink?

No-the mounting base is internally connected to the drain (Pin 2) and must be electrically tied to the drain potential. If the heatsink is grounded, a dielectric insulator (e.g., mica washer with thermal grease) is mandatory to prevent short-circuiting the drain node.

BUK9575-100A,127 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: TrenchMOS™

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 23A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 72mOhm @ 10A, 10V

Vgs(th) (Max) @ Id:: 2V @ 1mA

Gate Charge (Qg) (Max) @ Vgs:: -

Vgs (Max):: ±15V

Input Capacitance (Ciss) (Max) @ Vds:: 1704 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 99W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

BUK9575-100A,127 FAQ

1.How can I place an order for BUK9575-100A,127 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK9575-100A,127 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BUK9575-100A,127 reliable?

The price and inventory of BUK9575-100A,127 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9575-100A,127 is usually 5 days.

3.What payment methods are accepted for BUK9575-100A,127?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9575-100A,127 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK9575-100A,127?

BUK9575-100A,127 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK9575-100A,127 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BUK9575-100A,127?

For technical support, including BUK9575-100A,127 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9575-100A,127 requirements.

6.How does Aetrix verify that BUK9575-100A,127 is sourced from the original manufacturer or authorized distributors?

All BUK9575-100A,127 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BUK9575-100A,127 meets industry standards.

7.What is the process for return or replacement of BUK9575-100A,127?

All BUK9575-100A,127 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9575-100A,127, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BUK9575-100A,127 part is unused and in its original packaging.

Return procedure for BUK9575-100A,127:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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